Typewriting machine



A. G. F. KUROWSKI.

TYPEWRITING MACHINE APPLICATIONIILED SEPT. 10. 1920.

v 42 5 32 Patented Aug. 8, 1922.

rrics.

ALFRED G. F, KUROWSKI, OF BROOKLYN, NEW YORK, ASSIGNOR T0 UNDERWOODTYPEVVRITER COMPANY, OF NEW YORK, N. 'Y., A CORPORATION OF DELA- WARE.

TYPEWRITING MACHINE.

Specification of Letters Patent.

Patented Aug. 8, 1922.

Application filed September 10, 1920. Serial No. 409,323.

To all whom it may concern:

lie it known that I, ALFRED G. F. Knnow- SKI. a citizen of the UnitedStates. residing in Brooklyn Borough, in the county of Kings, city andState of New York, have invented certain new and useful Improvements inlypewriting Machines, of which the following is a specification.

This invention relates to typewriting machines in which a centraltype-guide is provided near the printing-point, and in which the typesare provided with projections adapted to enter said guide which isusually placed in vertical alignment with the print-.

ing-point.

It'is necessary to bend the typebars, ad-

jacent the type-heads, to a greater degree the nearer they approach theends of the usual segment in order that the types thereon may be invertical alignment with the printing point on the platen. It has beenfound that the type-bars at the extreme ends of the segment had'to bebent to such a degree as to impair the effectiveness of the centralguide.

provided auxiliary side-guides, as set forth in the a 'zplication ofGeorge W. Campbell, Serial h o 3%1928, filed September 24, 1919. Thepresent invention provides a new structure for the type-guide. having acentral and two auxiliary side-guides. and also pro-- vides meanswhereby the width of the guides may be adjusted, and the guides thenlocked.

The type-guide of the present invention may constitute a new article ofmanufacture comprising a base or attaching portion, a

central pair of spaced jaws rising there In addition to thecentralguide. there have, therefore, been guides and applied to the machine(only part of which is shown).

. Figure 2 is a front view'of the structure shown in Figure 1. I

l igure 8 shows the device dissociated into its various parts anddisconnected from the machine. l 4

. Figure 1 is a front View .of a modified form looking in the directionof the arrow in Figure 5. v

Figure 5 is an end" view of the device shown in Figure 4.

Figure 6 is a detail section of one of the beveled-head adjuStingscreWstaken on the line 6-6 of Figure 'The machine comprises .the usualtypebars 1.0, pivoted upon a fulcrum rod 11, and

operated by the usual =key-levers (not The type-bars operatein a seg-rshown.) ment 12, having radial guide-slots13 for the type-bars 10. Eachof thetype-bars carries a type-block or, type-head 15 bearing (inthis-instance) three types 16. In the ordinary typewriter,eachtypeblockhas a projection 1? in line with the type and adapted to operate in aguide-slot of the type-guide. The lattercomprises a baseformingbracketor attaching portion 20 fixed to the segment by means of screws21,.andconsists of an upstanding portion 2% having risers 25 providingjaws spaced apart to form a central guide-slot 18. The

risers end in lugs or flanges 19, forming lower j at s. each presentinga fiat upper surface inclinedsubstantially radially from theprinting-point, which is slightly above the topsof the risers. the typestriking against the platen 30. Each riseris provided in its outer sidewthtapped holes- 31 and In addition the left-hand riser has a tappedhole 33, while the right-handriser has a corresponding clearance hole34.

Adapted to be attached to the risers are side members 36" havinginclined upper flanges 37, forming upper jaws, which run in the samedirection and are of the same form as the flanges or lower aws 19 on therisers. The side members are adapted to be held in position so that' theupper flanges '37 are spaced above lower flanges 19 a distanceequivalent to guide space 18, or

' slightly more than the thickness of the typebar, thereby to form"auxiliary guide-slots.

with holes 33 and 34. The attachment of lowering the side members.

and are the auxiliary guides. The width of these guides may be adjustedby raising or This is accomplished by loosening screws 43 and screwingbeveled-head screws 42 in or out of notches 41 as desired to raise orlower the side members, since the latter ride upon the bevelof screws42.The side members are then looked in position by means of the screws l3.i

The adjustment'of the central guide is accomplished by means of a pairof screws, either otwhich may be the adjusting screw or the lockingscrew. A screw 45, extending loosened.

irom one jaw 25 to the other, passes through clearance hole 34andengagesthe-screwthreads in the tapped hole 33. It will be seen thatthe action of this screw will be to draw the jaws together. The otherscrew is a beveled-head screw 50 (similar to the screw 62 shown enlargedin Figure 6) passing or entering between the jaws and having threadedengagement with the inlner walls of the jaws, the adjusting screw s45and 50 being disposed transversely or at 40 right'angles to each other.It will be apparent from Figure 6 that upon entrance of the beveled headbetween the jaws the latter will be spread apart. The adjustment isaccomplished as followszAssuming that the jaws are too. close together,the beveled-head screw 50 is screwed in to spread the jaws apart, thescrew being first released .or When the desired opening has beenobtained screw 45 is tightened and will prevent the jaws from moving outof this position, and so serves to lock the jaws in adjusted position.Assuming that the jaws are too far apart, screw is released,

H and screw 45 is screwed in until the jaws side members 36 and risers25 integral. The.

above in connection with the adjustment of the auxiliary guides doesnot, therefore, depend upon movable side members. The risers carry bothjaws of the auxiliary guides 60, while the central guide is the same asthe Figures 1, 2 and 3 species. The adjustment of all of the guides isaccomplished in the same manner as the central guide of the Figures 1, 2and 3 device, i. e., by two screws, either one serving as the adjustment screw while the other is the looking screw. Screw 61 passesthrough a clearance hole in one jaw and engages a tapped hole in theother. Beveled-head screw 62 passes orenters between and engages thescrew-threaded interior walls of the jaws. The ad'ustment of any of theguides is accomplis ed in the same manner as described central guide ofFigures 1, 2 and 3.

The advantages of the auxiliary slots are suflicientlyset forth in theCampbell application previously referred to. Since the type-blocks 15must strike the printingpoint in a vertical line, it is apparent thatthe type-blocks near the ends of the segment 12 must be turned on theirtype-bars 10 an increasingly greater degree as they approach the ends ofthe segment. Such bent type-bars tend to rattle or spring laterally andtheir efficiency is thus impaired. Theauxiliary guides obviate thisobjection.

Several keys at each end of the segment chine, as well as a more nearlyperfect alignment and spacing of the printed characters along theprinting llne on the platen,

thereby improving the quality of the work.

In the particular construction or embodiment of the inventionillustrated in Figures 1 to 3, inclusive, of the drawings, and forming anew article of manufacture, the base or attaching portion 20, theupstanding central pair of jaws 25 and the inner members or jaws 19 ofthe lateral or outer pair of jaws, are all formed integrally or in onepiece, whilethe outer jaws 37 of the outer or lateral pair ofjaws formparts of the separate attachable members 36. In the modifiedconstruction forming the new article of' manufacture illustrated iiiFigures 4 and 5, the auxiliary guides 60, forming the outer or lateralpair of jaws, are carried by the upper ends of and formed in i one piecewith the central pair of jaws and with thebase or attaching portion ofthe device. In both these varieties. of the new article of manufacture,and as hereinbefore particularly described, separate means are providedfor independently and relatively adjusting the jaws of each pair to varythe width of the guide-slot formed between the jaws.

Variations may be resorted to within the scope of the invention, andportions of the improvements may be used without others.

lilaving thus described my invention, ll claim:

1. A type-guide for the types of a type writing machine forming a newarticle of manufacture and comprising a base or attaching portion, acentral pair of spaced jaws rising therefrom and forming a centralguide-slot, two lateral pairs of spaced jaws carried by the respectivejaws of said central pair of jaws and forming lateral guideslotsdisposed at a radial angle to'the central guideslot and to each other,and separate means for independently relatively adjusting the jaws' ofeach pair of jaws to vary the width of each of the guideslots.

2. A type-guide for the types of a typewriting machine forming a newarticle of manufacture and comprising a base or attaching portion, acentral pair of spaced aws rising therefrom and forming a. centralguide-slot, two lateral pairs of spaced jaws carried by the respectivejaws of said cen tral pair of jaws and forming lateral guideslotsdisposed at a radial angle to the central guide-slot and to each other,and separate means for independently relatively adjusting the jaws ofeach pair of jaws to vary the width of each of the guide-slots; the baseor attaching portion, the central of jaws and the inner jaws of thelateral pairs of jaws all being formed in one piece, and each of theouter jaws of the lat eral pairs of jaws being formed as separate piecesattachable to the respective jaws of the central pair of jaws.

3. In a front-strike typewriting machine, the combination with a systemof pivoted type-bars, of a central type-guide for the main portion ofthe type-bars in the system, said central guide being in a line with thetypes at the printing-point, and said main type-bars having typesprovided with guiding projections extending therefrom to enter saidguide, type-bar guides near the printing-point and at the sides of saidcentral type-guide and auxiliary thereto, to be directly engageable bytype-bars at the sides of the system, and means on said central andauxiliary guides for adjusting the width thereof.

4c. In a front-strike typewriting machine, the combination with a systemof pivoted type-bars of a central type-guide for the main portion of thetype-bars in the system, said central guide being in a line with thetypes at the printing-point, and said main type-bars having typesprovided with guiding projections extending therefrom to enthecombination with a system of pivoted type-bars, of a central type-guidefor the main portion of the type-bars in the system,

said central guide being in a line with the types the printing-point,and said main type bars having types provided with guiding projectionsextending therefrom toenter said guide, a bracket upon which saidcentral guide is mounted, risers on said bracket extending upward fromthe cen tral guide at the sides thereof and provided with jaws to formauxiliary guides, one on each side of and above the central gulde andengageable by type-bars at the sides of the system, and means on saldcentral and auxiliary guides for adjusting the width thereof.

6, In a front-strike typewriting machine, the combination with a systemof pivoted type-bars, of a central type-guide for the main portion ofthe type-bars in the system, said central guide being in a line with thetypes at the printing-point, and said main type-bars having typesprovided with guiding projections extending therefrom to enter saidguide, a bracket upon which said central guide is mounted, risers onsaid bracket extending upward from the central guide at the sidesthereof and provided with aws to form auxiliary guides, one on each sideof and above the central guide and engageable by type-bars at the sidesof the system, said jaws inclining substantially dially fromprinting-point, and means on said central and auxiliary guides foradjusting the width thereof.

7. In a front-strike typewriting machine, in combination, a platen, asystem of pivoted type-bars normally occupying a substantiallyhorizontal position in the arc ofa circle and radiating substantiallyfrom the printing-point on the front of the platen in the printingposit-ion of the type-bars, typecarrying type-heads on the forward endsof the type-bars arranged in varying angles thereto for bringing thetypes into vertical alignment with the printing-point in the printingposition of the types, a central type-guide at the front of the platenand having a guide-slot in vertical alignment with the type-heads of themain or middle portion of the type-bars in the system in the printingposition of these type-heads, guiding projections extending from thetypeheads of said main portion in line with the type-heads to enter theguide-slot of the central type-guide, auxiliary type-guides near theprinting-point and at the sides of the central type-guide and havingguideslots to be directly entered by the type-bars at the sides of thesystem and near the typeheads, and separate means for independentlyadjusting the width of the guide-slots of saidcentral and auxiliaryguides.

8. In a front-strike typewriting'machine, in combination, a platen, asystem of pivoted type bars normally occupying a substantiallyhorizontal position in the arc of a circle and radiating substantiallyfrom the printing-point on the front of the platen in the printingposition of the type-bars, typecarrying type-heads on the forward endsof the type-bars arranged in varying angles thereto, for bringing thetypes into vertical alignment with the printing-point in the printingposition of the types, a central type-guide at the front of theplatenand having a guide-slot in vertical alignment with the type-headsof the main or middle portion of the type-bars in the system in theprinting position of these type'-heads, guiding projections extendingfrom the typeheads of said main portion in line with the type-heads toenter the guide-slot of the central type-guide, auxiliary type-guidesnear the printing point and at the sides of the central type-guide andhaving guide-slots to bedirectlyentered by the type-bars at the sides oithe system and near the type-heads, said type-bars at the sides of thesystem being provided with flat guiding projections extending directlytherefrom to enter the guide-slots of the auxiliary type-guides, andseparate means for independently adjusting the Width of the guide-slotsof said central and auxiliary guides.

9. in a front-strike typewriting machine having a platen, a system ofpivoted typeburs normally occupying a substantially horizontal positionin the are of a circle and radiating substantially from theprintingpoint on the front of the platen in the print ing position ofthe type-bars, said type-bars carrying types at their forward ends; incombination with a type-guide comprising an attaching base fixed on themachine, a central pair oi spaced jaws rising from the attaching baseand forming a substantially vertical central. guide-slot for the typescarried by the main or middle, portion of the type-bars in the system,two lateral pairs of spaced aws carried by the respective jaws of: saidcentral pair of jaws and forming width of. the guide-slot formedthereby.

10. In a front-strike typewriting machine, the combination with a systemof pivoted type-bars, of a central. type-guide for the main portion of.the type-bars in the system, said central guide being in a line'with thetypes attheprinting-point, and said main type-bars havingtypes providedwith guidingprojections extending therefrom to on tersaid guide,type-bar guides near the printing-point and at the sides of said centraltypeguide and auxiliary thereto, to be directly engageable by type-barsat the sides of the system, said side type-bars having' bends attheir'type ends, said auxiliary guides being engageable by saidtype-bars between. said bends and the type-bar pivots, and means on saidcentral and auxiliary guides for adjusting the width thereof.

11.111 a front-strike typewriting machine, the combination with a systemof pivoted type-bars, of a central type-guide for the main portion ofthe type-bars in the system, said central guide being in a line with thetypes at the printing-point, andsaid main 'typebar s having typesprovided with guiding projections extending therefrom t6 enter saidguide, a bracket upon which said central guide is mounted, riserson saidbracket forming the central guide and provided with jaws to formauxiliary guides, one on eachside of the central guide and engageable bytype-bars at the sides of the system, and means 'onsaid central andauxilia-ry guides for adjusting the Width thereof.

12. In a front-strike typewriting machine, the combination with a systemof pivoted type-bars, of a central type-guide for the main portion ofthetype-bars in the system, said central guide being in a line with thetypes at the printingpoint, and said main type-bars having typesprovided with guiding projections extending therefrom to enter saidguide, a bracket upon which said central guide is mounted, risers onsaid bracket "forming the central guide and provided with jaws to formauxiliary guides, one on each side of the central guide and engageableby type-bars at' th'e sides of the system, said jaws incliningsubstantially radially from the printing-point, and means on saidcentral and auxiliary guides for adjusting the width thereof.

13. In a front-strike typewriting machine, the combination with a systemof pivoted type-bars, of a bracket fixed to said machine, risers forminga central type-guide and also forming lower jaws, oneon either side ofsaid guide, members adapted to be attached to said risers and formingupper jaws, said lower and upper jaws co-operating to form auxiliaryguides, one to either side of the central guise, each of said guidesco-operating with certain of the type-bars, and means for adjusting saidmembers on the risers to *ary the distance between the upper and lowerjaws.

14. In a front-strike typewriting machine, the combination with a systemoi pivoted ype-bars, of a bracket fixed to said machine, a centraltype-guide on the bracket comprising spaced jaws forming a centralguideslot, risers on said bracket, one on either side of and forming thecentral guide and also forming lower jaws, members adapted to beattached to said risers and forming upper jaws, said upper and lowerjaws cooperating to form auxiliary guides, one to either side of thecentral guide and forming auxiliary guide-slots. each of said guidescooperating with certain of the type-bars, and means on each of saidguides for adjusting the distance between the jaws thereof to vary thewidth of the guide-slot.

15. In a front-strike typewriting machine, the combination with a systemof pivoted type-bars, of a bracket fixed to said machine, a centraltype-guide on the bracket comprising spaced jaws forming a centralguide-slot, risers on said bracket, one to either side of and formingthe central guide and also forming lower jaws, members adapted to beattached to said risers and forming upper jaws, said upper and lowerjaws co-operating to form auxiliary guides, one to either side of thecentral guide and forming auxiliary guide-slots, means for verticallyadjusting said members to vary the distance be tween said upper andlower jaws, and means for locking said members in adjusted position.

16. In a front-strike typewriting machine, the combination with a systemof pivoted type-bars, of a bracket fixed to said machine and comprisinga central type-guide and risers, one to either side of said guide andforming lower jaws, each of said risers having two tapped holes. sidemembers adapted to be attached to said risers and forming upper jaws,each member having an upper slot and a cut-out portion in its lowerextremity, said upper and lower jaws co-operating to form auxiliaryguides, a beveledhead screw co-operating with the cut-out portion ofeach side member and one of the tapped holes of each riser to adjust theside member vertically, and a screw passing through the slot in eachside member and cooperating with the other tapped hole to lock the sidemember in adjusted position, said slots being elongated to allow forrelative movement of the side members and risers to adjust the distancebetween said upper and lower j HWSM 17. In a front strike typewritingmachine, the combination with a system of pivoted type-bars, of abracket fixed to said machine and comprising a central type-guide andrisers, one to either side of said guide and forming lower jaws, each ofsaid risers having two tapped holes, side members adapted to be attachedto said risers and forming upper jaws, each member having an upper slotand a cut-out portion in itslower extremity, said upper and lower jawsco-operating to form auxiliary guides, a beveledhead screw co-operatingwith the cut-out portion of each side member and one of the tapped holesof each riser to adjust the side member vertically, a screw passingthrough the slot in each side member and co-operating with the othertapped hole to lock the side member in adjusted position, said slotsbeing elongated to allow for relative movement of the side members andrisers to adjust the distance between said upper and lower jaws, thecentral guide having a screw passing between the jaws and havingthreaded engagement therewith for spreading the jaws apart, one of saidjaws having a tapped hole, the other of said jaws having a correspondingclearance hole, and a screw passing through the clearance hole andco-operating with the tapped hole to draw the jaws together, each ofsaid screws being adapted to lock the jaws in position when the otherscrew is used for adjustment purposes.

ALFRED G. F. KUROW SKI.

Witnesses:

CATHERINE A. NEWELL, JENNIE P. THORNE.

